Magnesium chloride salt-assisted synthesis of porous N-doped carbons from molten polycyclic aromatic hydrocarbons for high-performance supercapacitors

A molten-state synthesis of new nitrogen-doped carbons (NdCs) is reported with tailored surface and electrochemical properties. They exhibit state-of-the-art activity (energy and power densities and cycling performance) as supercapacitor materials.